1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 1 2016 02 29 N Status Replaced by WSS-M15P20-B1/2 A. Wagenhals, NA 2010 05 25 Activated M. Dumitrescu, G. Eaton Copyright 2016, Ford Global Technologies, LLC Page 1 of 3 PERFORMANCE, HEADREST, FOAM IN PLACE WSS-M15P39-B NOT TO BE USED FO
2、R NEW DESIGN 1. SCOPE This specification defines the performance requirements for foam in place molded headrest. 2. APPLICATION This specification was released originally for automotive molded headrest applications. This is not applicable for wrap around applications. Molded foam used in assemblies
3、must also meet WSS-M15P20-B1/B2 requirements. The face materials must meet the requirements of material specifications (eg. M1F, M2F, M1H) and the appropriate Performance Specification. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conf
4、orm to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 SAMPLE SELECTION Testing must be conducted on part at each prototype and production build phase unless specified by Ford Engineering. See Table 1 for DV/PV testing. 3.3 APPEARANCE (FLTM BI 109-01) The color, pat
5、tern, and finish shall match the approved Design Center master sample, or shall be as specified on the engineering drawing. 3.4 CONSTRUCTION These parts consist of face/cover material laminated to foam, which are cut and sewn to the desired shape and injected with foam. Cover - as specified on Engin
6、eering Drawing. Foam - as specified on Engineering Drawing Substrate as specified on Engineering Drawing ENGINEERING MATERIAL SPECIFICATION WSS-M15P39-B Copyright 2016, Ford Global Technologies, LLC Page 2 of 3 3.5 PRODUCT INDENTATION CHARACTERISTICS (FLTM BO 111-02, Method “B“, except as follows:)
7、Loadings at the test displacements must conform to the requirements as specified on the Engineering Drawing. Test method: . Place the product on a matrix that matches the surface contour of the bottom side of the part. Test area shall be put in horizontal position. Use an 80 mm diameter indentor. .
8、Apply a force (preload) of 5 N to the test area as indicated on the Engineering Drawing and zero the load scale and displacement scale. . Indent the product to the first displacement as shown on the Engineering Drawing at a rate of 100 +/- 20 mm/minute. After reaching this indentation, release the l
9、oad at the same rate. Repeat this loading and unloading twice. . Immediately after the third unloading indent the product to the third displacement as shown on the Engineering Drawing and maintain for 30 s. Measure the force (N). 3.6 PEEL ADHESION, N/50 mm, min, (FLTM BN 151-05, Method “A“, specimen
10、 thickness reduced to 15 mm max) 3.6.1 Fabric/Vinyl material/laminate foam As received 9 After Aging 9 (Heat, cold, humidity and dry cleaning) After Autoclave Aging 9 (ISO 2440/ASTM D 3574, Test J2, 5 h at 120 C) Leather covers shall not be laminated and only tacked onto the backing foam, prior to f
11、oam injection. 3.7 RESISTANCE TO FADE, min (FLTM BO 116-01, ISO 105-A02/AATCC Evaluation Procedure 1) 977.6 kJ/m2 Rating 4 3.8 ODOR, max Rating 3 (FLTM BO 131-03) ENGINEERING MATERIAL SPECIFICATION WSS-M15P39-B Copyright 2016, Ford Global Technologies, LLC Page 3 of 3 3.9 FOGGING (SAE J1756, 3 h at
12、100 +/- 2 C heating, 21 C cooling plate, post test conditioning 16h) Fog Number, min 70 The formation of droplets or coalescence into a clear film is cause for rejection. 3.10 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute Testing Requirements Table 1 Paragraphs Sample size New color
13、testing DV PV Comments 3.5 Product Indentation Characteristics 3 X X 3.6 Peel Adhesion 3.6.1 Face material/laminated foam 3 X 3.7 Resistance to fade 1 per color X X Surrogate material supplier data may be used. 3.8 Odor 1 per part per condition X X Material data may be used as surrogate when using a Ford approved material. 3.9 Fogging 3 specimens per part-any color X X Contact materials engineering if surrogate data is acceptable. 3.10 Flammability 5 specimens X X X Testing depends on part size (355x100mm min) FMVSS 302 can be used as surrogate
